A Hierarchical MoO 2 /Au/MnO 2  Heterostructure with Enhanced Electrochemical Performance for Application as Supercapacitor | Zendy

Zhang Xia | Zendy; Xu Yuandong | Zendy; Ma Ying | Zendy; Yang Min | Zendy; Qi Yanxing | Zendy

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A Hierarchical MoO 2 /Au/MnO 2 Heterostructure with Enhanced Electrochemical Performance for Application as Supercapacitor

Author(s) -

Zhang Xia,

Xu Yuandong,

Ma Ying,

Yang Min,

Qi Yanxing

Publication year - 2015

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.201500501

Subject(s) - supercapacitor , electrochemistry , chemistry , heterojunction , horizontal scan rate , capacitance , diffusion , ion , chemical engineering , nanotechnology , optoelectronics , electrode , cyclic voltammetry , materials science , physics , organic chemistry , engineering , thermodynamics

A hierarchical MoO 2 /Au/MnO 2 heterostructure was prepared by a two‐step electrodeposition method. The ion‐diffusion and charge‐collection capacity improved after spraying a Au layer. Electrochemical tests show that the areal specific capacitance for MoO 2 /Au/MnO 2 is up to 112 mF cm –2 at a scan rate of 5 mV s –1 . Furthermore, the obtained MoO 2 /Au/MnO 2 heterostructure also displays an excellent rate capability and remarkable cycling stability.

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